735914

Octylphosphonic acid

97%

• Synonym(s): n-Octylphosphonic acid, OPA
• Empirical Formula (Hill Notation): C₈H₁₉O₃P
• CAS Number: 4724-48-5
• Molecular Weight: 194.21
• EC Number: 225-218-5
• MDL number: MFCD00015841
• UNSPSC Code: 12352300
• PubChem Substance ID: 329765066
• NACRES: NA.23

Properties

• Assay: 97%
• form: solid
• mp: 93-98 °C
• SMILES string: CCCCCCCCP(O)(O)=O
• InChI: 1S/C8H19O3P/c1-2-3-4-5-6-7-8-12(9,10)11/h2-8H2,1H3,(H2,9,10,11)
• InChI key: NJGCRMAPOWGWMW-UHFFFAOYSA-N

Description

General description

Octylphosphonic acid (OPA) forms a self-assembled monolayer (SAM), which serves as a protective anti-corrosive phosphonate layer on a variety of surfaces.

Application

OPA can be used as a surfactant that may be added to silver (Ag)/titanium oxide (TiO₂) for uniform dispersion into the polymeric matrix. It may be coated on indium-tin oxide (ITO) substrates, which can be used for super-resolution microscopy. OPA based charge blocking layer may be used to prevent leakage of current in a hybrid dielectric film.

Safety Information

• Pictograms: GHS08,GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H302,H314,H373
• Precautionary Statements: P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 - P314
• Hazard Classifications: Acute Tox. 4 Oral - Skin Corr. 1B - STOT RE 2 Oral
• Target Organs: Kidney,Bone
• Storage Class Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable